淬火就是把钢件加热到或超过它的临界温度范围，然后使其快速冷却的过程。
Hardening is the process of heating a piece of steel to a temperature within or above its critical range and then cooling it rapidly.
淬火。这个工艺是把材料加热到临界温度范围之上，然后迅速冷却到临界温度范围以下，使钢材明显变硬。
Hardening. This is the process of heating to a temperature above the critical range, and cooling rapidly enough through the critical range to appreciably harden the steel.
测得材料的基准温度电阻，电阻温度系数及能够确定传感器工作范围的临界温度。
The resistance at reference temperature, its temperature coefficient, and the critical temperature of the material that the operating range of the sensor depended on have been obtained.
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